After a few months whatever headphones I have tend to develop breaks in the internal wiring from trying to keep them in my pocket or leaving them jumbled. Eventually just one side can produce audio output, at which point they are junk.

While getting some better built headphones is one solution, you should try to improve your bad habits. Donít keep IEMs in your pocket, use a case, coil the cable gently and they wonít get tangled when you use them next time. The most durable IEMs Iíve ever owned are the cx300s, that said I take care of my IEMs and have never suffered the issue that plagues you on any IEMs Iíve owned. You can read about cleaning them here.